@book{4980,
	author = {Gould, James L., and Keeton, William T.},
	title = {Biological science /},
	publisher = {W.W. Norton & Co.,},
	year = {c1996.},
	address = {New York :},
	edition = {6th ed.},
	note = {Keeton's name appears first on the earlier edition.}
}